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  #11  
Old 05-31-2016, 07:43 AM
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bsacks05 bsacks05 is offline
 
Join Date: Jan 2005
Location: Warner Robins, GA
Posts: 1,178
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Pete,

Didn't you recently buy one of those inexpensive endoscopes/borescopes? if so, did you use it after discovering the leaky valve? I would love to see some pictures of the valve if you did.
Just curious because I got one of those scopes and will be using it for my inspection this summer.
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RV-9 N659DB - Flying since 7/1/06
Hatz CB-1 - Getting close to covering.
Warner Robins, GA
A&P
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  #12  
Old 05-31-2016, 09:01 AM
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David-aviator David-aviator is offline
 
Join Date: Feb 2005
Location: Chesterfield, Missouri
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About 20 years ago I had a first run 0360A4M overhauled at 2200 hours. I opted for new Millenium cylinders thinking that was smart. One of them failed 600 hours later.
At the time the OH shop advised the original Lycoming cylinders could have been cleaned up and would have continued running just fine.
I am flying with a Superior engine in the 8 but wonder if the after market products are as good as original Lycoming stuff.
Your engine should not be causing trouble at 1600 hours.
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RV-7A...Sold #70374
The RV-8...#83261 flying as of 6/16/2014
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  #13  
Old 05-31-2016, 09:24 AM
rvsxer rvsxer is offline
 
Join Date: May 2007
Location: Inver Grove Hgts, MN
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Pete,

Check your PM's
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Mike Hilger
RV-6 N207AM w/G3X, 1,400 hours +
South St. Paul, MN (KSGS)
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  #14  
Old 05-31-2016, 09:35 AM
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LettersFromFlyoverCountry LettersFromFlyoverCountry is offline
 
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Location: St. Paul, MN.
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Quote:
Originally Posted by petehowell View Post
Of course there is a video for this....

https://www.youtube.com/watch?v=7g1MpHpxVwo
What a great video! They make it look so easy.
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St. Paul, MN.
Blog: Letters From Flyover Country
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  #15  
Old 05-31-2016, 09:50 AM
cajunwings cajunwings is offline
 
Join Date: Jun 2007
Location: new iberia la
Posts: 484
Default Exhaust Valve

This is only one step beyond routine maintenance. If all other engine parameters are good I would remove the cylinder and have a engine shop repair as necessary. Reface both valves and seats, hone cyl barrel and install with new rings, seals & gaskets. Break in as usual and fly off towards TBO. If you ship the cylinder be sure to pad/protect the upper end really well. If the box gets dropped head down the rocker bosses can be deformed. I have used Gibson several times before with good results.

Don Broussard. A&P/ IA

RV 9 Rebuild in Progress
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  #16  
Old 05-31-2016, 09:58 AM
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petehowell petehowell is offline
 
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Location: MN
Posts: 2,066
Default Dental cam

Hi Bruce - I have a $35 dental cam - it shows the top of the valve pretty well and it looked fine - the vid thru the hole show the spot where the leak looks to be.

The local cylinder shop is gonna take a look and let me know - they thought the valves and rings looked good at first glance this morning.
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Pete

Amateur Plane - RV-9A N789PH - 1900+ Hrs
Amateur Radio - KD0CVN
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St. Paul, MN
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  #17  
Old 05-31-2016, 11:27 AM
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AlexPeterson AlexPeterson is offline
 
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Location: Maple Grove, MN
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Quote:
Originally Posted by David-aviator View Post
SNIP

Your engine should not be causing trouble at 1600 hours.
It seems unheard of for one to go that long with nothing at all needing attention. Or, maybe I just hang out in the wrong circles...
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RV6A N66AP 1500+ hours
Maple Grove, MN
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  #18  
Old 06-01-2016, 09:51 PM
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petehowell petehowell is offline
 
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Location: MN
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Default Back in the Game!

I took the cylinder over to the engine shop Tues morning and they said it looked pretty good they could have it back to me by Friday. They called today and said pick it up!

I traded $400 for a new guide, exhaust valve, gasket set, and some labor. 45 min later the jug was back on. They said the rings and bore looked great, so just bolt it on and go!

All cleaned up:




I removed, cleaned and bled the lifters then checked the clearances, which were right at the lower limit. Quick compression check showed 78/80 - Booyah!! I'll get the baffles, intake and exhaust hooked up tomorrow night.

All in all, not as bad as expected. I did take a good look at the cam and lifters and they looked pretty good, too.
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Pete

Amateur Plane - RV-9A N789PH - 1900+ Hrs
Amateur Radio - KD0CVN
Doggies Delivered - 20 and Counting
St. Paul, MN
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Last edited by petehowell : 06-01-2016 at 09:53 PM.
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  #19  
Old 06-02-2016, 08:08 AM
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IowaRV9Dreamer IowaRV9Dreamer is offline
 
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Location: Marion IA
Posts: 1,069
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Wow Pete looks awesome. Did they hone the bore? Do you have to use mineral oil again?
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Dave Gribble VAF #232
Building RV-9A N149DG (slider, IO-320, IFR)
Restored and Flying Beech Super III N3698Q
Marion IA

Restarting the project after too many years off

There is no sport equal to that which aviators enjoy while being carried through the air on great white wings." Wilbur Wright, 1905
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  #20  
Old 06-02-2016, 08:23 AM
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miyu1975 miyu1975 is offline
 
Join Date: Apr 2008
Location: Indianapolis, IN
Posts: 1,022
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Nice job Pete. Who did the cylinder work if you don't mind?
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RV 7 N324TP IO 360 A1A
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